Description

Dynapac CA 25 Parts Catalog – OEM Factory Parts Breakdown

If you are wrenching on a Dynapac CA 25 and need to order a part, you have two options: guess from a blurry aftermarket diagram and hope it fits, or pull up the factory parts catalog. I have seen too many jobs stalled because somebody ordered the wrong scraper blade or the wrong seal for the torque hub. Do not be that guy. This is the genuine Dynapac publication – 390 pages of exploded views, factory part numbers, and assembly group breakdowns. No aftermarket shortcuts. No generic part substitutions. You get the exact reference the manufacturer uses on the line.

Frame and Hood Assembly: Group 1 & 2 Covered

The catalog kicks off with the frame and hood assembly – groups 001 and 002. You will find the main frame, fenders, hydraulic tank mounts, and steering link. Each part is numbered against an exploded drawing. If you need the hydroil tank or the hood hinge bracket, the page reference is right there. The steering link group (page 014 in the TOC) covers the articulation joint pin and bushing part numbers. Do not replace a pin with a generic bolt – the load rating matters on a 12-ton roller.

7 Major Component Groups Mapped

This catalog breaks the CA 25 down into seven major groups: frame, hood/hydraulic tank, steering link, scrapers (drum and tyre), water system (tank, front sprinkler, pump/filter, rear sprinkler), roller assembly, and torque hub. Each group has its own section with sub-groups. For example, the scrapers group includes drum scrapers and tyre scrapers – separate part numbers for each. The water system splits into four sub-groups: tank assembly, front sprinkler, pump and filter assembly, rear sprinkler. That level of detail keeps you from ordering the wrong nozzle for the front spray bar.

Does This Parts Catalog Include Engine Parts?

Yes. Engine assembly is covered in group 003, page 2 of the engine section. The catalog is valid for CA 25 rollers with Perkins engines – STD, D/PD, and E variants – specific serial number ranges printed on page 3. You get the engine mount bolts, fan shroud, fuel filter head, and alternator part numbers. If you are chasing an oil leak and need a gasket set, the part number is in this catalog. It will not tell you how to rebuild the engine, but it will get you the correct gasket kit.

Get the Right Part Numbers, Not Close Ones

Here is the truth: aftermarket parts catalogs copy and paste until they get it wrong. I have seen a water pump listed for a CA 25 that was actually for a later series. The only way to verify is with the factory publication. This catalog gives you the OEM part number, the illustration, and the group location. When you call the parts counter, you read them the number from this book. No guesswork. No returns because the bolt pitch is different. The torque hub section alone – groups 030 and 034 – lists the reducer, seals, and bearings. If you blow a seal on the torque hub, you need the exact hub part number, not a universal replacement.

Torque Hub Section: What the OEM Lists

The torque hub is one of the most expensive assemblies on the CA 25. This catalog shows the exploded view of the reducer, including the gear set, bearing carriers, and the output flange. Part numbers are grouped by series – note that later machines (serial 6899400+) may use different bearings. Check the serial number on page 3 against your machine. The catalog covers Perkins E and N variants – different part numbers for the engine bellhousing interface. If you are replacing the torque hub, you need the correct spline count. This catalog tells you which one you have.

Why OEM Documentation Beats Aftermarket Reprints

I have been burned by aftermarket “reprints” that are scanned at 72 dpi with missing pages. This is a direct factory PDF, not a copy of a copy. The page numbers match the original print – you can cross-reference with any dealership parts system. Dynapac does not license their parts data to third parties. So when you buy a third-party book, you are paying for a bootleg scan. This catalog comes from the original source file, with all groups intact – 390 pages, fully indexed. Plus, the PDF includes multi-language support (English, Spanish, French, Portuguese) so your crew can read it in their language.

Related Manuals for the Dynapac CA 25

• Dynapac CA 25 Parts Catalog – this catalog
• Dynapac CA 25 Spare Parts Catalogue – different edition, similar groups
• Dynapac CA 25 Series Spare Parts Catalog – Section: Group 9 Equipment – focus on optional equipment
• Automotive Industry Overview – context on heavy equipment manufacturing standards

Can I use this parts catalog to repair my CA 25 roller?

No. This is a parts catalog, not a service manual. It lists part numbers and assembly groups – no torque specs, no removal procedures.

How do I know this catalog matches my specific machine?

Check the serial number range on page 3 of the catalog. It lists multiple series for Perkins engines (e.g., STD/P 6808800-). If your machine falls within one of those ranges, the part numbers are valid. If your serial is outside those ranges, you may need a different edition. The catalog covers both STD and D/PD variants. The torque hub section also notes different bearing setups for later series – always verify your machine’s serial before ordering expensive components.

Bottom line: if you maintain a Dynapac CA 25, this parts catalog belongs in your toolbox. Access the Factory Manual and stop wasting time chasing wrong parts.